West Berlin decided today to organize a feasibility study of its proposal to host the 2004 Olympic Games with East Berlin. The study group is due to report back to the city government before the end of the year. East Germany has not warmed to the idea of both sides of the divided city hosting the Games and is promoting Leipzig as its candidate, but West Berlin Mayor Walter Momper said he hopes that the Communist state will change its mind.

American, British and French soldiers stationed in West Berlin regularly go on buying sprees in East Berlin to purchase state-subsidized products with money obtained illegally on the black market, the Soviet newspaper Izvestia said Saturday. The soldiers sell dollars and West German marks to speculators in West Berlin, who in return give them East German marks at an illegal rate as much as 20 times more favorable than the official exchange level, the official government daily said.

An East German spy posing as a waiter served former President Ronald Reagan and used a secret infrared device to beam intelligence reports across the Berlin Wall, a West Berlin newspaper said today. The Berliner Morgenpost, quoting security authorities, said the 58-year-old man, now under arrest, worked for a service firm hired regularly by West Berlin's Senate to cater official receptions.

An attempt to rush 27,000 refugees into West Berlin on a roundabout route through Communist Eastern Europe has apparently been thwarted, the West German Foreign Ministry said. A spokesman said the plan had involved ferrying 600 busloads of asylum-seekers from Turkey to Bulgaria and from there to West Berlin.

The East German city of Leipzig will bid for the right to stage the 2004 Summer Olympics, East Germany's Communist leader Erich Honecker told a visiting West German politician today. West Berlin Mayor Walter Momper said Honecker told him about Leipzig's plans to bid for the Games during a three-hour meeting in East Berlin. Momper said he had raised the subject of West and East Berlin making a joint bid to share the 2004 Games. But Honecker replied that East Germany's candidate would be Leipzig, Momper told reporters.